The Communications Workers of America (CWA) is the largest communications and media labor union in the United States, representing about 700,000 members in both the private and public sectors (also in Canada and Puerto Rico). The union has 27 locals in Canada via CWA-SCA Canada (French: Syndicat des communications d'Amérique) representing about 8,000 members. CWA has several affiliated subsidiary labor unions bringing total membership to over 700,000. CWA is headquartered in Washington, D.C., and affiliated with the AFL–CIO, the Strategic Organizing Center the Canadian Labour Congress, and UNI Global Union. The current president is Chris Shelton.